What can you do to support those affected most by the bombing at the Boston Marathon? Well, you can give blood. You'll probably be able to make donations for the families facing medical bills or dealing with loss. And of course you can go for a run and prove that some cowardice act won't keep you from the sport you love.

Wear a running shirt tomorrow. To work. To the store. To the gym. When people ask you about it, say, "I'm wearing this because I'm a runner to show that we are here for each other." If anything, you'll realize what a strong community we have; one made of people from all walks of life, all ages, and all races. And if you're seeing this on Tuesday, wear one on Wednesday.